Frankly even if Darth Vader makes the connection that C3-PO is indeed the same droid he made all those years ago... would he care. Most people in the Star Wars universe pay little attention the droids around them, seeing them as little better then toasters.
Young Anakin pretty much tells threepio "see yeah, tell mom not to sell you". Only people that in the movies that have shown any real attatchments to droids are : Padame in Phantom, and Luke to almost all the droids,(C3-PO, R2, the medical droid).
Young Anakin pretty much tells threepio "see yeah, tell mom not to sell you". Only people that in the movies that have shown any real attatchments to droids are : Padame in Phantom, and Luke to almost all the droids,(C3-PO, R2, the medical droid).